So it's almost six months after the iPad's US release -- and there are still no iPad refurbs in the Apple Store. At a time when AT&T is already selling refurb iPhone 4's, which just debuted this Summer, iPad refurbs are noticeably absent from normal retail channels.

Although Apple is certain to be already working on the next generation of iPad, it's clear that its high demand continues to produce limited availability. We may not be seeing refurbished units for some time yet.